You are assuming customisation remains static. One solution I can think of is a site (eg bestforks.com) that has 2 fork choices - you pick one and you are done

You are assuming customisation remains static. One solution I can think of is a site (eg bestforks.com) that has 2 fork choices - you pick one and you are done. (The web means that you can show different catalogues to each user.) Another solution is that they figure out the customisations automatically. For example stand in your room (eg kitchen) and take panoramic photo/video. Based on that it is possible to figure out appropriate colours, sizes and other design criteria (eg sleek/simple versus ornate). Again it can offer you one or two right choices. Yet another brings people back into the process. You have a "design/customisation consultant" and they make the choices/customisation for you.